Cosmetic compound in emulsion form comprising a dispersion of surface stabilized polymer particles in a liquid fat phase
CA 2245989 A1 · Owner: L'Oreal · Inventors: Contamin, Jean-Claude; Rouquet, Violaine
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a cosmetic, dermatologic hygienic or pharmaceutic compound for skin care or makeup in the form of an emulsion comprising a dispersion of polymer particles surface-stabilized in the fat liquid phase of the emulsion and eventually at least one colouring agent the amount of polymer being sufficient to make the compound transfer-free. The said compound makes it possible to obtain a flexible non-fat film on the lips or skin having remarkable properties of non transferability while being extremely comfortable. The invention also relates to the use of this polymer dispersion in such a compound.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed September 30, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 30, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 30, 2020.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.